Dedup InboundUpdateAdd::Forwarded data; fix PaymentForwarded fields#4405

valentinewallace merged 10 commits intolightningdevkit:mainlightningdevkit/rust-lightning:mainfrom

valentinewallace:2026-02-dedup-htlc-fwd-datavalentinewallace/rust-lightning:2026-02-dedup-htlc-fwd-dataCopy head branch name to clipboard